*/
/* This file manages the list of devices and their arguments, as given
- * by the user at startup */
+ * by the user at startup
+ *
+ * Code here should not call rte_log since the EAL environment
+ * may not be initialized.
+ */
+#include <stdio.h>
#include <string.h>
-#include <rte_log.h>
#include <rte_pci.h>
#include <rte_devargs.h>
#include "eal_private.h"
struct rte_devargs_list devargs_list =
TAILQ_HEAD_INITIALIZER(devargs_list);
+int
+rte_eal_parse_devargs_str(const char *devargs_str,
+ char **drvname, char **drvargs)
+{
+ char *sep;
+
+ if ((devargs_str) == NULL || (drvname) == NULL || (drvargs == NULL))
+ return -1;
+
+ *drvname = strdup(devargs_str);
+ if (*drvname == NULL)
+ return -1;
+
+ /* set the first ',' to '\0' to split name and arguments */
+ sep = strchr(*drvname, ',');
+ if (sep != NULL) {
+ sep[0] = '\0';
+ *drvargs = strdup(sep + 1);
+ } else {
+ *drvargs = strdup("");
+ }
+
+ if (*drvargs == NULL) {
+ free(*drvname);
+ *drvname = NULL;
+ return -1;
+ }
+ return 0;
+}
+
+static int
+bus_name_cmp(const struct rte_bus *bus, const void *name)
+{
+ return strncmp(bus->name, name, strlen(bus->name));
+}
+
/* store a whitelist parameter for later parsing */
int
rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str)
{
struct rte_devargs *devargs = NULL;
- char *buf = NULL;
- char *sep;
+ struct rte_bus *bus = NULL;
+ char *dev = NULL;
+ const char *devname;
int ret;
/* use malloc instead of rte_malloc as it's called early at init */
devargs = malloc(sizeof(*devargs));
- if (devargs == NULL) {
- RTE_LOG(ERR, EAL, "cannot allocate devargs\n");
+ if (devargs == NULL)
goto fail;
- }
+
memset(devargs, 0, sizeof(*devargs));
devargs->type = devtype;
- buf = strdup(devargs_str);
- if (buf == NULL) {
- RTE_LOG(ERR, EAL, "cannot allocate temp memory for devargs\n");
- goto fail;
- }
-
- /* set the first ',' to '\0' to split name and arguments */
- sep = strchr(buf, ',');
- if (sep != NULL) {
- sep[0] = '\0';
- devargs->args = strdup(sep + 1);
- } else {
- devargs->args = strdup("");
- }
-
- if (devargs->args == NULL) {
- RTE_LOG(ERR, EAL, "cannot allocate for devargs args\n");
+ if (rte_eal_parse_devargs_str(devargs_str, &dev, &devargs->args))
goto fail;
+ devname = dev;
+ do {
+ bus = rte_bus_find(bus, bus_name_cmp, dev);
+ if (bus == NULL)
+ break;
+ devname = dev + strlen(bus->name) + 1;
+ if (rte_bus_find_by_device_name(devname) == bus)
+ break;
+ devname = dev;
+ } while (1);
+ if (bus == NULL) {
+ bus = rte_bus_find_by_device_name(devname);
+ if (bus == NULL) {
+ fprintf(stderr, "ERROR: failed to parse bus info from device declaration\n");
+ goto fail;
+ }
}
+ devargs->bus = bus;
switch (devargs->type) {
case RTE_DEVTYPE_WHITELISTED_PCI:
case RTE_DEVTYPE_BLACKLISTED_PCI:
/* try to parse pci identifier */
- if (eal_parse_pci_BDF(buf, &devargs->pci.addr) != 0 &&
- eal_parse_pci_DomBDF(buf, &devargs->pci.addr) != 0) {
- RTE_LOG(ERR, EAL, "invalid PCI identifier <%s>\n", buf);
+ if (bus->parse(devname, &devargs->pci.addr) != 0)
goto fail;
- }
+
break;
case RTE_DEVTYPE_VIRTUAL:
/* save driver name */
- ret = snprintf(devargs->virtual.drv_name,
- sizeof(devargs->virtual.drv_name), "%s", buf);
- if (ret < 0 || ret >= (int)sizeof(devargs->virtual.drv_name)) {
- RTE_LOG(ERR, EAL, "driver name too large: <%s>\n", buf);
+ ret = snprintf(devargs->virt.drv_name,
+ sizeof(devargs->virt.drv_name), "%s", devname);
+ if (ret < 0 || ret >= (int)sizeof(devargs->virt.drv_name))
goto fail;
- }
+
break;
}
+ if (devargs->type == RTE_DEVTYPE_WHITELISTED_PCI) {
+ if (bus->conf.scan_mode == RTE_BUS_SCAN_UNDEFINED) {
+ bus->conf.scan_mode = RTE_BUS_SCAN_WHITELIST;
+ } else if (bus->conf.scan_mode == RTE_BUS_SCAN_BLACKLIST) {
+ fprintf(stderr, "ERROR: incompatible device type and bus scan mode\n");
+ goto fail;
+ }
+ } else if (devargs->type == RTE_DEVTYPE_BLACKLISTED_PCI) {
+ if (bus->conf.scan_mode == RTE_BUS_SCAN_UNDEFINED) {
+ bus->conf.scan_mode = RTE_BUS_SCAN_BLACKLIST;
+ } else if (bus->conf.scan_mode == RTE_BUS_SCAN_WHITELIST) {
+ fprintf(stderr, "ERROR: incompatible device type and bus scan mode\n");
+ goto fail;
+ }
+ }
- free(buf);
+ free(dev);
TAILQ_INSERT_TAIL(&devargs_list, devargs, next);
return 0;
fail:
- if (devargs->args)
+ free(dev);
+ if (devargs) {
free(devargs->args);
- if (buf)
- free(buf);
- if (devargs)
free(devargs);
+ }
+
return -1;
}
devargs->args);
else if (devargs->type == RTE_DEVTYPE_VIRTUAL)
fprintf(f, " VIRTUAL %s %s\n",
- devargs->virtual.drv_name,
+ devargs->virt.drv_name,
devargs->args);
else
fprintf(f, " UNKNOWN %s\n", devargs->args);